Australia's Battery Tipping Point
The data behind Australia's home battery revolution. 183,245 batteries sold in H2 2025, more than all previous years combined, with only ~2% of 4 million+ solar homes having batteries so far.
Home Battery Installations: 2019 to 2025
Annual home battery installations across Australia. The 2025 figure represents H2 alone.
Sources: Clean Energy Council, SunWiz Australian Battery Market Report
Battery vs Solar Installations (Quarterly)
Battery installations overtook new rooftop solar PV installs for the first time in Q2 2025, marking a structural shift in the market.
Sources: Clean Energy Regulator, SunWiz quarterly reports
State Breakdown: STC Registrations
Live STC registration data from the REC Registry, showing solar installation volume by state. Last updated: 2026-04-08.
Battery Penetration by State
Battery estimates from CEC/SunWiz. STC data live from REC Registry.
Policy Timeline: What Drove the Tipping Point
Feed-in tariff reductions and government incentives have been the primary catalysts for battery adoption, not just falling battery prices.
SA feed-in tariff drops below 10c/kWh
SA becomes first state where batteries make economic sense for most households
VIC Solar Homes battery rebate launches
Victoria sees 40% spike in battery installations within 12 months
QLD feed-in tariff cuts to 5c/kWh
Queensland battery installs double year-on-year
NSW introduces Peak Demand Reduction Scheme
VPP programs accelerate, creating ongoing revenue for battery owners
Federal Cheaper Home Batteries program announced
Roughly 30% off installed cost, making batteries viable for average households
Battery sales overtake rooftop solar PV (Q2)
Tipping point reached: batteries become the default add-on for solar homes
The Untapped Market
With only ~2% penetration, Australia's battery market has enormous room to grow.
Sources and Methodology
- Clean Energy Council (CEC): Annual battery installation counts, market share data
- SunWiz: Australian Battery Market Report, quarterly installation tracking
- Clean Energy Regulator (CER): STC registration data via the REC Registry
- REC Registry: Live state-level STC data fetched from the public register API
Battery penetration estimates combine CEC installation records with ABS housing data. State STC figures reflect all registered small-scale solar installations and are updated as new data becomes available.